gecko-dev/dom/media/mediasource/SourceBufferList.h

100 строки
2.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_SourceBufferList_h_
#define mozilla_dom_SourceBufferList_h_
#include "SourceBuffer.h"
#include "js/RootingAPI.h"
#include "mozilla/Assertions.h"
#include "mozilla/Attributes.h"
#include "mozilla/DOMEventTargetHelper.h"
#include "nsCycleCollectionNoteChild.h"
#include "nsCycleCollectionParticipant.h"
#include "nsISupports.h"
#include "nsTArray.h"
struct JSContext;
class JSObject;
namespace mozilla {
class ErrorResult;
template <typename T> class AsyncEventRunner;
namespace dom {
class MediaSource;
class SourceBufferList MOZ_FINAL : public DOMEventTargetHelper
{
public:
/** WebIDL Methods. */
SourceBuffer* IndexedGetter(uint32_t aIndex, bool& aFound);
uint32_t Length();
/** End WebIDL methods. */
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SourceBufferList,
DOMEventTargetHelper)
explicit SourceBufferList(MediaSource* aMediaSource);
MediaSource* GetParentObject() const;
JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
// Append a SourceBuffer and fire "addsourcebuffer" at the list.
void Append(SourceBuffer* aSourceBuffer);
// Remove a SourceBuffer and fire "removesourcebuffer" at the list.
void Remove(SourceBuffer* aSourceBuffer);
// Returns true if aSourceBuffer is present in the list.
bool Contains(SourceBuffer* aSourceBuffer);
// Remove all SourceBuffers and fire a single "removesourcebuffer" at the list.
void Clear();
// True if list has zero entries.
bool IsEmpty();
// Returns true if updating is true on any SourceBuffers in the list.
bool AnyUpdating();
// Runs the range removal steps from the MSE specification on each SourceBuffer.
void RangeRemoval(double aStart, double aEnd);
// Mark all SourceBuffers input buffers as ended.
void Ended();
// Evicts data for the given time range from each SourceBuffer in the list.
void Evict(double aStart, double aEnd);
// Returns the highest end time of any of the Sourcebuffers.
double GetHighestBufferedEndTime();
#if defined(DEBUG)
void Dump(const char* aPath);
#endif
private:
~SourceBufferList();
friend class AsyncEventRunner<SourceBufferList>;
void DispatchSimpleEvent(const char* aName);
void QueueAsyncSimpleEvent(const char* aName);
nsRefPtr<MediaSource> mMediaSource;
nsTArray<nsRefPtr<SourceBuffer> > mSourceBuffers;
};
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_SourceBufferList_h_ */